cut off my cats today

**emoFTW** · 09-22-2008, 09:02 AM

Well today i went to the muffler shop. I had my cats cut off and made a custom Y pipe, I then put a vibrant ultra quite resonator on the exhaust system as well. and at the end i have a flowmaster 80 series muffler. Cutting off the cats and putting that resonator on my car made it very quite... even more quite than when i had the cats on. I kinda like it... just wish it was louder!

anybody know what the difference between the 40 series and 80 series mufflers?

**MnLS1** · 09-22-2008, 09:38 AM

why didnt you wait and get long tubes and an ory if I may ask? Then it wouldve been alot louder!

**INMY01TA** · 09-22-2008, 04:44 PM

The 80 series is a crossflow design made for the f bodies. In one side, then out both sides. If you want it louder why not just take the resonator off?

**Boomer Sooner** · 09-22-2008, 04:52 PM

dont know the specifics but i have the super 40 and it is much louder than the 80 series.

40 series is also single in/dual out.

**INMY01TA** · 09-22-2008, 04:54 PM

Originally Posted by Boomer Sooner

dont know the specifics but i have the super 40 and it is much louder than the 80 series.

40 series is also single in/dual out.

Isn't that in one end then both out the other end.

**Boomer Sooner** · 09-22-2008, 04:57 PM

Originally Posted by INMY01TA

Isn't that in one end then both out the other end.

no. only 1 "in" pipe then there is two tail pipes, one on each side.

**emoFTW** · 09-22-2008, 08:05 PM

Originally Posted by MnLS1

why didnt you wait and get long tubes and an ory if I may ask? Then it wouldve been alot louder!

because i dont have that kind of money to spend, the shop gave me a good deal and i couldnt refuse it.

**emoFTW** · 09-22-2008, 08:10 PM

Originally Posted by INMY01TA

The 80 series is a crossflow design made for the f bodies. In one side, then out both sides. If you want it louder why not just take the resonator off?

cause i didnt want it to be raspy. but its super quiet... quiet like stock lol but it deff help performance wise.

**konigandy6** · 09-23-2008, 12:20 PM

80 series flowmasters are terrible for performance and for sound quality. Worse than stock IMO... I cut mine off about 3 days after owning my car for the SLP LM2 set up. Much louder and a LOT more performance!! Ditch the 80 series for a serious set up such as magnaflow or borla... The quality speaks for itself.

**WS6ICK2K** · 09-27-2008, 05:18 PM

Theres even a thread on here that flowmaster flows as worse as stock to back it up. IMO I would def take the resonator off. I wont be that raspy, and alot louder.

**Bouvers** · 09-28-2008, 01:02 PM

what you could do although this is kind of an extreme measure is get a manual exhaust cutout... it would be cheap. Then you could have clean deep exhaust when you want and when you want it to be loud as hell you can just uncap it...

just thought I would throw it out there...